Simple equations

Solve system of equations:

5x+3y=5
5x+7y=25

Correct answer:

x =  -2
y =  5

Step-by-step explanation:


5x+3y=5
5x+7y=25

5•x+3•y=5
5•x+7•y=25

5x+3y = 5
5x+7y = 25

x = -2
y = 5

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